EP0283651A1 - Méthode pour la fabrication d'une couche ou d'un film de laque - Google Patents

Méthode pour la fabrication d'une couche ou d'un film de laque Download PDF

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Publication number
EP0283651A1
EP0283651A1 EP88100821A EP88100821A EP0283651A1 EP 0283651 A1 EP0283651 A1 EP 0283651A1 EP 88100821 A EP88100821 A EP 88100821A EP 88100821 A EP88100821 A EP 88100821A EP 0283651 A1 EP0283651 A1 EP 0283651A1
Authority
EP
European Patent Office
Prior art keywords
layer
weight
lacquer
plastic
film
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP88100821A
Other languages
German (de)
English (en)
Other versions
EP0283651B1 (fr
Inventor
Manfred Dipl.-Ing. Schneider
Heinrich Dr. Dipl.-Ing. Heitz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alkor GmbH Kunstoffverkauf
Original Assignee
Alkor GmbH Kunstoffverkauf
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alkor GmbH Kunstoffverkauf filed Critical Alkor GmbH Kunstoffverkauf
Priority to AT88100821T priority Critical patent/ATE59590T1/de
Publication of EP0283651A1 publication Critical patent/EP0283651A1/fr
Application granted granted Critical
Publication of EP0283651B1 publication Critical patent/EP0283651B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/28—Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
    • B05D1/286—Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers using a temporary backing to which the coating has been applied
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
    • B05D3/068—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using ionising radiations (gamma, X, electrons)

Definitions

  • the present invention relates to a process for the production of lacquer layers or lacquer films, wherein lacquer is first applied to a radiation-permeable plastic film, cured by radiation and separated from the plastic release film (reusable plastic film), with several layers of a specific composition being applied to produce the printed lacquer films according to the invention will.
  • DE-OS 26 19 315 already discloses a method for painting flat material such as paper, cardboard, metal sheets and the like, using photopolymerizable lacquers, in which lacquer is applied in one layer to the flat material and cured by irradiation with a light source, wherein the lacquer is first applied to a film which is permeable to the curing light, is brought into contact with the flat material surface to be coated, and after the radiation has been irradiated through the film and the lacquer has hardened, the film is removed from the lacquer layer.
  • the disadvantage here is that the paint is applied in a paint coater and that immediately afterwards it has to be squeezed onto the flat material to be coated between a pair of rollers with the paint side.
  • the paint must therefore be processed immediately in the "wet state", so that storage of the layers is not possible.
  • the varnish cannot be printed in a damp state. A possible pressure when squeezing onto the flat material, preferably paper, would change its colors.
  • the aim and object of the present invention was to avoid the aforementioned disadvantages and to find an improved method and a paint film with improved properties.
  • the layer produced from the liquid coatings should be easily separable from the carrier film and interim storable and should also be able to be applied to different substrates or objects, preferably to wood or wood-based materials, furniture parts made from wood-based materials, by means of adhesive or adhesion promoter.
  • the lacquer is first applied to a radiation-permeable plastic film, cured by radiation and separated from the plastic release film (reusable plastic film).
  • the plastic release film reusable plastic film.
  • at least one of one or more synthetic resin or plastic materials is used to produce printed lacquer films on the plastic release film at temperatures between 10 ° C. to 90 ° C., preferably 20 ° C. to 60 ° C.
  • non-heat-sealable top layer serving as carrier layer or carrier film after separation from the plastic releasing film
  • a total thickness (measured after curing or drying) of 2 to 40 ⁇ m, preferably 5 to 15 ⁇ m, which contains free reactive chemical groups and color pigments and / or dyes and has at least one solvent and / or diluent of more than 35% by weight (based on the total weight of the top layer to be applied) and / or (at room temperature) liquid monomers and / or liquid prepolymers, prepolymers or pre-condensates, and a 10 to 95 ⁇ m, preferably 30 to 50 ⁇ m, thick, transparent or translucent lacquer layer with a color pigment content of less than 3% by weight directly over the cover layer or over an intermediate layer arranged above the cover layer , preferably without color pigments, from an electron beam (B eta rays) curable lacquer applied,
  • a print layer preferably a color print layer, with a total thickness of 0.5 to is applied as an intermediate layer between the cover layer and the lacquer layer 12 microns, preferably 1.0 to 5 microns (measured after curing or drying) applied, the liquid organic chemical solvents and / or diluents and / or (at room temperature) liquid monomers and / or liquid prepolymers, pre-condensates and / or prepolymers contains.
  • a 0.1 to 6 ⁇ m, preferably 0.5 to 4 ⁇ m, thick adhesive layer (measured after curing or drying), the free chemical reactive groups and consists synthetic resin, plastic and / or (at room temperature) liquid monomers and / or liquid prepolymers, prepolymers and / or pre-condensates and / or organic chemical solvents or diluents and as a further part of the top layer one or more color pigment top layers with a total thickness of 1, 9 to 30 microns, preferably 4.5 to 15 microns, applied.
  • the action of electron beams is preferably carried out through the release plastic layer (ie from the opposite side of the lacquer layer).
  • the layers may therefore preferably not contain any metal layers or metallizations.
  • the adhesive layer consists of polyisocyanates, preferably Polyisocyanate of hexamethylene diisocyanate, and hydroxyl and / or amine group-containing resins, precondensates and / or prepolymers in liquid form, preferably hexamethoxymethyl melamine resin, and / or hydroxyl group-containing polyacrylate and / or polymethacrylate and / or vinyl chloride copolymer or contains one or more of these compounds as the main component.
  • polyisocyanates preferably Polyisocyanate of hexamethylene diisocyanate, and hydroxyl and / or amine group-containing resins, precondensates and / or prepolymers in liquid form, preferably hexamethoxymethyl melamine resin, and / or hydroxyl group-containing polyacrylate and / or polymethacrylate and / or vinyl chloride copolymer or contains one or more of these compounds as the main component.
  • the color pigment layer (s) which is or are applied to the adhesive layer has or have a diluent and / or solvent content, preferably an organic chemical solvent content, of 40 to 70% by weight, preferably 50 to 66% by weight .-%, and a solids content consisting of color pigments and / or dyes and synthetic resin binders, and optionally processing aids of 60 to 30 wt .-%, preferably 50 to 34 wt .-%.
  • the diluent or solvent is removed after application by the action of heat to more than 30% by weight, preferably more than 50% by weight (based on 100% by weight of diluent or solvent), preferably before another layer is applied over it becomes.
  • the color pigment top layer (s), which is or are applied to the adhesive layer consist of liquid monomers, precondensates and / or liquid prepolymers, preferably a mixture of liquid monomers with liquid ones Prepolymers, with a low solvent content and / or diluent content, preferably without solvents and diluents, with a total weight of 90 to 30% by weight, preferably 80 to 50% by weight, and color pigments and / or dyes, and optionally processing aids in amounts by weight of 10 to 70% by weight, preferably 20 to 50% by weight.
  • the color pigment top layer or color pigment top layers consist of 10 to 70% by weight, preferably 20 to 50% by weight, color pigments and / or dyes and 90 to 30% by weight, preferably 80 to 50% by weight. %, Synthetic resin binders or their starting constituents in the form of the monomers, precondensates and / or prepolymers (calculated as solids), based on the total solids content of the color pigment top layer (s).
  • the wet lacquer layer is cured via a smooth or a structured roller, preferably a matted structure roller, the structure and / or the matting being taken over by the lacquer layer.
  • the plastic release film or web consists of or preferably contains fluoropolymers, polyolefin, polybutylene terephthalate and / or polyethylene terephthalate, etc., preferably polyvinylidene fluoride, polytetrafluoroethylene and / or polyethylene.
  • the synthetic resin binder of the color pigment top layer preferably consists of vinyl chloride copolymers, vinyl chloride-acrylate copolymers, nitrocellulose with maleate or ketone resin, nitrocellulose with acrylate resins and / or methacrylate resins, preferably acrylate resin.
  • the transparent or translucent lacquer layer consists or contains, as a plastic binder, cationically curing resins, preferably epoxy resins, vinyl ethers and / or vinyl ester polymers, copolymers and / or monomers which free-radically harden to form resins, prepolymers, precondensates, preferably monomers or prepolymers of acrylates and / or methacrylates, or Mixtures of two or more resins with one another or mixtures with one or more of these resins.
  • resins preferably epoxy resins, vinyl ethers and / or vinyl ester polymers, copolymers and / or monomers which free-radically harden to form resins, prepolymers, precondensates, preferably monomers or prepolymers of acrylates and / or methacrylates, or Mixtures of two or more resins with one another or mixtures with one or more of these resins.
  • Irradiation can take place in the presence of a wide variety of gases in the case of cationically curable resins, preferably air or oxygen. Irradiation with the special use of an inert gas or an inert atmosphere is not necessary and is preferably avoided. Likewise, the action of the radiation need not take place with alternating gas compositions. In the case of the radically curable resins, curing takes place by irradiation, preferably using or using inert gases, preferably in a nitrogen atmosphere.
  • the radiation is beta rays or electron beams, which are accelerated by the radiation source in an electron accelerator and are preferably directed onto the substrate via linear and / or surface cathodes.
  • the acceleration voltage is 150 - 500 KV, preferably 200 - 300 KV.
  • the invention further relates to printed films consisting of a plurality of layers containing plastic or synthetic resin, the film being a lacquer film which consists of at least one non-heat-sealable top layer consisting of one or more synthetic resin or plastic-containing layers with a total thickness (measured after curing or Drying) of 2 to 40 ⁇ m, preferably 5 to 15 ⁇ m, which contains free reactive chemical groups and color pigments and / or dyes, a printing layer, preferably a color printing layer, arranged above the top layer, with a total thickness of 0.5 to 12 ⁇ m, preferably 1 , 0 to 5 ⁇ m (measured after curing or drying), and a 10 to 95 ⁇ m, preferably 30 to 50 ⁇ m, thick, transparent or translucent lacquer layer arranged above it with a color pigment content of less than 3% by weight, preferably without color pigments or containing a hardened with electron beams, preferably with beta rays g hardened paint, is composed.
  • the printed film contains after one preferred embodiment a 0.1 to 6 microns, preferably 0.5 to 4 microns thick adhesive layer (measured after curing or drying), which contains free chemical reactive groups and synthetic resin or plastic.
  • a 0.1 to 6 microns preferably 0.5 to 4 microns thick adhesive layer (measured after curing or drying), which contains free chemical reactive groups and synthetic resin or plastic.
  • One or more color pigment cover layers with a total thickness of 1.9 to 30 ⁇ m, preferably 4.5 to 15 ⁇ m, are arranged thereon as a further part of the cover layer.
  • the color pigment top layer or color pigment top layers consist of 10 to 70% by weight, preferably 20 to 50% by weight, color pigments and / or dyes and 90 to 30% by weight, preferably 80 to 50% by weight, Resin binders (calculated as solids), based on the total solids content of the color pigment top layer (s).
  • the invention further relates to a device combination for the production of paint film webs, with the aid of which the paint is first applied to a radiation-permeable plastic film or plastic film web and cured by an irradiation device and separated from the plastic film or plastic film web (plastic release film).
  • the device combination consists of a unwinding device for the plastic release film or film web, at least one printing roller pair or printing unit arranged thereafter for applying an adhesive layer, at least one printing roller pair or printing roller unit arranged thereafter for applying the cover layer, at least one, preferably a plurality of printing roller pairs or printing roller mills arranged thereafter for applying at least one printing layer, at least one coating unit arranged thereafter for applying a transparent or translucent coating layer, at least one electron emitter or an electron beam device arranged thereafter, at least one winding device for the release film and at least one winding device for the finished one Paint film or film sheet.
  • FIG. 1 shows a cross section through the lacquer layer arranged on a release film (1).
  • the plastic release film (1) is connected to the adhesive layer (2) and this to the cover layer (3).
  • One or more printing layers (4) are arranged on the cover layer and are covered by the transparent or translucent lacquer layer (5).
  • the plastic release film (1) passes from the unwinding device (6) for the release film to the printing unit or pair of printing rollers (7), which is used to apply the adhesive layer (2), and subsequently to the printing unit or pair of printing rollers (9), which is used to apply the cover layer (3) is intended for the release film (1) provided with the adhesive layer (2).
  • a plurality of printing units or pairs of printing rollers (9 to 12) are preferably arranged, with the aid of which the printing layer or printing layers are applied to the cover layer be applied.
  • the plastic film or plastic film web coated and printed in this way then reaches the electron emitter (s) or the electron irradiation device (13), is separated after the irradiation in such a way that the release film (1) leads to the winding device (15) for the release film or to the station (6 or 7) arrives while the lacquer film separated from the release film is taken up by the winding device (16) or cut into film webs of a certain length.
  • a plastic release film preferably a polyolefin film, at temperatures between 20-80 ° C. and separated from the release film as a lacquer film:

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Laminated Bodies (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Organic Insulating Materials (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Insulated Conductors (AREA)
EP88100821A 1987-03-19 1988-01-21 Méthode pour la fabrication d'une couche ou d'un film de laque Expired - Lifetime EP0283651B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88100821T ATE59590T1 (de) 1987-03-19 1988-01-21 Verfahren zur herstellung von lackschichten und lackfolien.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873708908 DE3708908A1 (de) 1987-03-19 1987-03-19 Verfahren zur herstellung von lackschichten und lackfolien
DE3708908 1987-03-19

Publications (2)

Publication Number Publication Date
EP0283651A1 true EP0283651A1 (fr) 1988-09-28
EP0283651B1 EP0283651B1 (fr) 1991-01-02

Family

ID=6323441

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88100821A Expired - Lifetime EP0283651B1 (fr) 1987-03-19 1988-01-21 Méthode pour la fabrication d'une couche ou d'un film de laque

Country Status (4)

Country Link
EP (1) EP0283651B1 (fr)
AT (1) ATE59590T1 (fr)
DE (2) DE3708908A1 (fr)
ES (1) ES2019409B3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997011922A1 (fr) * 1995-09-27 1997-04-03 Basf Coatings Aktiengesellschaft Revetement durcissable par rayonnement
WO1997011787A1 (fr) * 1995-09-27 1997-04-03 Basf Coatings Ag Film de peinture adhesif

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4425792A1 (de) * 1994-07-21 1996-02-01 Manfred Keppeler Verfahren zur Herstellung von Folien und Beschichtungen durch Sprühen
DE19751607B4 (de) * 1997-11-21 2010-01-14 Usp Indicator Solutions Gmbh Schutzfolie zum Schutz und zum Rahmen von graphischen Gebilden und Verfahren zu deren Herstellung
DE10057107C1 (de) * 2000-11-16 2002-06-20 Rohrscheidt Friedrich Von Verfahren zum Bedrucken, Prägen oder Herstellen eines biegeweichen Produktes und ein Transportband hierfür

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0009885A1 (fr) * 1978-09-01 1980-04-16 Mobil Oil Corporation Procédé d'application d'une couche sur un substrat
EP0043063A1 (fr) * 1980-06-28 1982-01-06 Letron GmbH Procédé pour la fabrication d'une feuille-support revêtue d'une laque durcie par irradiation électronique
EP0121942A1 (fr) * 1983-04-12 1984-10-17 Fuji Photo Film Co., Ltd. Méthode pour préparer un film à plusieurs couches
GB2142279A (en) * 1983-06-30 1985-01-16 Letraset International Ltd Dry transfer materials
EP0228671A1 (fr) * 1985-12-23 1987-07-15 General Electric Company Procédé pour la fabrication d'un substrat revêtu, à caractéristiques de surface spécifiques

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0009885A1 (fr) * 1978-09-01 1980-04-16 Mobil Oil Corporation Procédé d'application d'une couche sur un substrat
EP0043063A1 (fr) * 1980-06-28 1982-01-06 Letron GmbH Procédé pour la fabrication d'une feuille-support revêtue d'une laque durcie par irradiation électronique
EP0121942A1 (fr) * 1983-04-12 1984-10-17 Fuji Photo Film Co., Ltd. Méthode pour préparer un film à plusieurs couches
GB2142279A (en) * 1983-06-30 1985-01-16 Letraset International Ltd Dry transfer materials
EP0228671A1 (fr) * 1985-12-23 1987-07-15 General Electric Company Procédé pour la fabrication d'un substrat revêtu, à caractéristiques de surface spécifiques

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997011922A1 (fr) * 1995-09-27 1997-04-03 Basf Coatings Aktiengesellschaft Revetement durcissable par rayonnement
WO1997011787A1 (fr) * 1995-09-27 1997-04-03 Basf Coatings Ag Film de peinture adhesif
US6210796B1 (en) 1995-09-27 2001-04-03 Basf Coatings Ag Adhesive paint film

Also Published As

Publication number Publication date
DE3861335D1 (de) 1991-02-07
DE3708908A1 (de) 1988-09-29
EP0283651B1 (fr) 1991-01-02
ES2019409B3 (es) 1991-06-16
ATE59590T1 (de) 1991-01-15

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